diff --git a/bin/doctor_karma.pl b/bin/doctor_karma.pl
index d812337..e5fc447 100755
--- a/bin/doctor_karma.pl
+++ b/bin/doctor_karma.pl
@@ -180,7 +180,7 @@ sub show_donate {
     my $chat_id = $message->{chat}{id};
 
     my $html = <<'EOF';
-You can donate btc using this link <a href="bitcoin:bc1qtas98jqjglezqtz5es8cpg0h72qquc4h83e0gz?message=Donations%20DoctorKarma&time=1644428921">DoctorKarma donations</a>:
+You can donate btc using this link <a href="bitcoin://bc1qtas98jqjglezqtz5es8cpg0h72qquc4h83e0gz?message=Donations%20DoctorKarma&time=1644428921">DoctorKarma donations</a>.
 EOF
     $telegram->send_message(
         chat_id => $chat_id,